Take a look at the sentence again:

When Henry opened the vegetable crisper at the bottom of the refrigerator, the puddle of rotting lettuce that he discovered __________ up the kitchen for the rest of the day.

The sentence requires the past tense of stink, an irregular verb. Stank is one of two simple past forms.

Verb Simple Present Simple Past Past Participle
stink stink(s) stank or stunk stunk

Stanked, the form you chose, is a spelling error. Before you continue, review the rules for irregular verbs.

Go back to the sentence to try again.

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